It said that the official boundaries of the city were relatively small, excluding affluent suburbs, and the figures don't account for the fact that we have a low cost of housing and heating.

The local authority also pointed out that there is a disproportionately high number of students, who bring down the average.

It said students make up 15 percent of Nottingham’s population (46,000 out of 305,000) - the highest proportion of students of any of England’s largest cities and almost four times the national average, according to the council.